Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1675237Generated: October 30, 2026

Pyridine → HCID 67336322, compound

https://huagongshe.com/reaction/1675237

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantAcrylic AcidHCID 6581—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
ReactantHCID 67333810HCID 67333810—
SolventTetrahydrofuranHCID 8028—
ProductHCID 67336322HCID 6733632227%

Reaction Conditions

Temperature0 °C

Reaction Steps

320 mg of 2-amino-N-{4-[3-chloro-4-(3-fluoro-benzyloxy)-phenylamino]-7-(2-methoxyethoxy)-quinazolin-6-yl}-acetamide as a starting material was dissolved in 10 ml of THF, and cooled to 0° C. The solution was reacted with 0.06 ml of acrylic acid, 0.1 ml of pyridine and 234 mg of 1-(3-dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride at 0° C. for 1 hour and at room temperature for 5 hours. The reacted solution was extracted with a mixture of chloroform and isopropanol after adding saturated sodium bicarbonate, dried over anhydrous sodium sulfate, filtered and distilled under a reduced pressure, and the resulting residue was subjected to column chromatography (eluent-ethylacetate:methanol=30:1) to obtain the title compound (96 mg, 27%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08003658B2
Source datasetuspto-grants-2011_08
ORD IDord-c7f23779e1534612a7d8acbb046936a6
Source noteuspto-grants-2011_08